极地研究

极地研究 ›› 2009, Vol. 20 ›› Issue (2-English): 172-186.

• 研究论文 • 上一篇    下一篇

Shock metamorphism in meteorites

Xie Zhidong   

  1. S tate Key Laboratory for Research of Mineral Deposits, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China
  • 出版日期:1959-06-30 发布日期:1959-06-30
  • 通讯作者: Xie Zhidong

Shock metamorphism in meteorites

Xie Zhidong   

  1. S tate Key Laboratory for Research of Mineral Deposits, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China
  • Online:1959-06-30 Published:1959-06-30
  • Contact: Xie Zhidong

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摘要：

Shock metamorphism resulting from hypervelocity collisions between planetary bodies, is a fundamental processes in the solar system. The term "shock metamorphism" is used to describe all changes in rocks and minerals resulting from the passage of shock waves. Mostmeteorites have experienced collisions and have a record of shock metamorphism, which includes brecciation, deformation, phase transformation, local melting and crystallization. The key to reading this record is to use the shock features to estmiate the pressure and duration of shock event. In this paper, the history of the study of shock metamorphism is reviewed; basic knowledge of shock physics is discussed; recent 10 years' studies of shock-induced melt veins are summarized; and finally a short note to the shock metamorphism in general is given.

关键词: shock metamorphism, meteorite, shock-induced melt vein, impact

Abstract:

Shock metamorphism resulting from hypervelocity collisions between planetary bodies, is a fundamental processes in the solar system. The term "shock metamorphism" is used to describe all changes in rocks and minerals resulting from the passage of shock waves. Mostmeteorites have experienced collisions and have a record of shock metamorphism, which includes brecciation, deformation, phase transformation, local melting and crystallization. The key to reading this record is to use the shock features to estmiate the pressure and duration of shock event. In this paper, the history of the study of shock metamorphism is reviewed; basic knowledge of shock physics is discussed; recent 10 years' studies of shock-induced melt veins are summarized; and finally a short note to the shock metamorphism in general is given.

Key words: shock metamorphism, meteorite, shock-induced melt vein, impact